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convert voting period to epochs

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Danny Ryan 2019-01-25 17:40:44 -07:00
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specs/core/0_beacon-chain.md
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@ -206,7 +206,7 @@ Code snippets appearing in `this style` are to be interpreted as Python code. Be
| `EPOCH_LENGTH` | `2**6` (= 64) | slots | 6.4 minutes |
| `SEED_LOOKAHEAD` | `2**0` (= 1) | epochs | 6.4 minutes |
| `ENTRY_EXIT_DELAY` | `2**2` (= 4) | epochs | 25.6 minutes |
| `ETH1_DATA_VOTING_PERIOD` | `2**10` (= 1,024) | slots | ~1.7 hours |
| `ETH1_DATA_VOTING_PERIOD` | `2**4` (= 16) | epochs | ~1.7 hours |
| `MIN_VALIDATOR_WITHDRAWAL_EPOCHS` | `2**8` (= 256) | epochs | ~27 hours |
### Reward and penalty quotients
@ -1590,7 +1590,7 @@ For each `exit` in `block.body.exits`:
## Per-epoch processing
The steps below happen when `state.slot % EPOCH_LENGTH == EPOCH_LENGTH - 1`.
The steps below happen when `(state.slot + 1) % EPOCH_LENGTH == 0`.
### Helpers
@ -1650,9 +1650,9 @@ Define the following helpers to process attestation inclusion rewards and inclus
### Eth1 data
If `state.slot % ETH1_DATA_VOTING_PERIOD == ETH1_DATA_VOTING_PERIOD - 1`:
If `slot_to_epoch(state.slot) % ETH1_DATA_VOTING_PERIOD == 0`:
* Set `state.latest_eth1_data = eth1_data_vote.data` if `eth1_data_vote.vote_count * 2 > ETH1_DATA_VOTING_PERIOD` for some `eth1_data_vote` in `state.eth1_data_votes`.
* Set `state.latest_eth1_data = eth1_data_vote.data` if `eth1_data_vote.vote_count * 2 > ETH1_DATA_VOTING_PERIOD * EPOCH_LENGTH` for some `eth1_data_vote` in `state.eth1_data_votes`.
* Set `state.eth1_data_votes = []`.
### Justification
@ -1812,7 +1812,7 @@ and perform the following updates:
If a validator registry update does _not_ happen do the following:
* Let `epochs_since_last_registry_change = (current_epoch - state.validator_registry_update_epoch)`.
* Let `epochs_since_last_registry_change = current_epoch - state.validator_registry_update_epoch`.
* If `epochs_since_last_registry_change` is an exact power of 2:
* Set `state.current_calculation_epoch = next_epoch`.
* Set `state.current_epoch_seed = generate_seed(state, state.current_calculation_epoch)`